Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5041785 | Device for measuring a relative displacement of two objects, including a magnetic scale and two mutually perpendicular magnetic sensors which produce two independent phase displaced signals | Johannes L. G. M. Bogaerts | 1991-08-20 |
| 4833666 | Disc-record player suitable for scanning disc of different types | Wilhelmus A. H. Gijzen, Michel H. F. Decoster | 1989-05-23 |
| 4783777 | Disc player | — | 1988-11-08 |
| 4768185 | Optical-disc apparatus | — | 1988-08-30 |
| 4661940 | Optical disc player | — | 1987-04-28 |
| 4490011 | Optical device | Roger J. E. Houbregs | 1984-12-25 |
| 4389717 | Apparatus for writing and/or reading information on a rotary information disc with the aid of a radiation beam | — | 1983-06-21 |
| 4252412 | Optical focussing device | — | 1981-02-24 |
| 4218065 | Arrangement for centering, aligning and retaining a rotating record | Willem van der Hoek | 1980-08-19 |
| 4183627 | Adjusting device for adjusting the position of an optical or opto-electronic component in two directions of adjustment which are perpendicular to each other | — | 1980-01-15 |